Definitions:
the ability of a customer to obtain goods or services before payment, based on the trust that payment will be made in the future

an entry recording a sum received, listed on the right-hand side or column of an account

public acknowledgement or praise, given or received when a person's responsibility for an action or idea becomes apparent

the acknowledgement of a student's completion of a course or activity that counts towards a degree or diploma as maintained in a school's records

the quality of being believed or credited

publicly acknowledge a contributor's role in the production of (something published or broadcast)

add (an amount of money) to an account

believe (something surprising or unlikely)